Question

a.
Schleiden and Schwann proposed the cell theory on the basis of:
Their observation
b. Observations of Hooke and Brown
All observations on the cell
d. Observation made on the nucleus of the cell
C.
Sheldon and Swan propose the century on the basis of E their observation be Ops observation of Hawkins Brown see all observation understand the observation made on the nucleus of the cell

Answer 1

Explanation:

Observation made on the nucleus of the cell